Assembly straight seam welding device

Abstract

The utility model discloses an assembly straight seam welding device, which relates to the technical field of assembly welding, and comprises a support frame and a lifter, a fixing frame is arranged above the support frame, a limiting mechanism, a welding mechanism and a jacking mechanism are arranged on the fixing frame, the limiting mechanism comprises a limiting lead screw and a nut seat, and the nut seat is arranged on the limiting lead screw. The welding mechanism comprises a motor, a moving seat, a lifting air cylinder and an adjusting frame, and the jacking mechanism comprises a jacking plate and an air bag. According to the utility model, parts can be easily moved for port butt joint, the positioning and lifting of welding parts can be conveniently realized, the rapid linear motion of a welding gun can be realized, the continuity and stability of the welding process are ensured, and the waiting time of manual operation is reduced; the device can fix the position, needing to be welded, of a workpiece, guarantees the stability and precision in the welding process, can adjust the angle and height of a welding gun to meet different welding requirements, and is suitable for assembling and straight seam welding of products with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of group welding, in particular to a group straight seam welding device. Background Art

[0002] In actual large-scale welding work, straight seam welding is often encountered, such as the group welding of beams or plates. The commonly used technical means is manual welding through a fixture. For example, the authorized patent CN201921722654.X is a flat straight seam welding test fixture, which can be completed by workers manually welding. Other hoists or supporting equipment are required in the alignment process. The welds of large workpieces are spliced, and then clamped by the above-mentioned fixture, and finally the welding operation is performed. Straight seam welding requires high welding skills of the operator and needs to ensure a certain degree of stability. Manual welding is difficult to ensure the consistency of welding quality, resulting in low precision and poor quality of product straight seam welding. With the popularization of automation, combined with the above-mentioned problems, a group welding device is proposed. Utility Model Content

[0003] The utility model aims to provide a straight seam welding device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight seam welding device, including a support frame and a lift, a fixed frame is provided above the support frame, a limiting mechanism, a welding mechanism and a tightening mechanism are provided on the fixed frame, the limiting mechanism includes a limiting screw and a nut seat, the welding mechanism includes a motor, a moving seat, a lifting cylinder and an adjusting frame, and the tightening mechanism includes a tightening plate and an airbag.

[0005] Further: the motor body is arranged on the side of the fixed frame, a transmission wheel is provided at the output end of the motor, and a transmission wheel is also provided in front of the fixed frame. The two transmission wheels are covered with transmission belts on the outside, and the transmission belts are connected to the moving seat. The lifting cylinder is located above the moving seat, and a lifting seat is provided between the adjusting frame and the lifting cylinder.

[0006] Preferably: a welding gun is provided at the head of the adjusting frame, a long hole is provided on the fixing frame below the welding gun, a guide rod is passed through the bottom of the movable seat, both ends of the guide rod are fixed on the fixing frame, and the lifting seat and the movable seat are interconnected through a slider rail.

[0007] Preferably, the lift is a scissor lift, a lifting hand wheel is provided in the middle of the lift, universal balls are evenly distributed on the upper surface of the lift, a long strip is provided in the middle of the upper part of the lift, and a tightening mechanism is located directly above the long strip.

[0008] Further: the limiting mechanism is located at the rear of the fixing frame, the nut seat is arranged on the fixing frame, the limiting screw passes through the nut seat, a limiting frame is arranged in front of the limiting screw, guide columns are arranged on both sides of the limiting frame and pass through the front vertical plate of the fixing frame.

[0009] Furthermore: a rotating shaft is provided at the rear of the tightening plate, the end of the rotating shaft is arranged at the bottom of the fixing frame through a rotating seat, and the airbag is located in the upper middle part of the tightening plate.

[0010] Preferably: the tightening plate and the airbag are symmetrically distributed below the middle of the fixing frame, a through hole is provided at the rear of the tightening plate, and a spring stud is passed through the through hole, the upper end of the spring stud is fixed below the fixing frame, a top block is provided below the head of the tightening plate, and the bottom of the top block is opposite to the long strip block.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can easily move parts for port docking, and can conveniently realize the positioning and lifting of the welded parts by adjusting the limit mechanism and the lifting hand wheel, and can realize the rapid linear movement of the welding gun, thereby ensuring the continuity and stability of the welding process and reducing the waiting time of manual operation; through the cooperation of the tightening mechanism and the airbag, the workpiece to be welded can be fixed, thereby ensuring the stability and precision of the welding process; the angle and height of the welding gun can be adjusted to meet different welding requirements, thereby obtaining better welding effects, and is suitable for straight seam welding of product groups with different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is an enlarged schematic diagram of point A;

[0014] Figure 3 It is the front view of the utility model;

[0015] Figure 4 is a schematic cross-sectional view of BB;

[0016] Figure 5 This is an enlarged schematic diagram of point C;

[0017] Figure 6 It is a top view of the utility model;

[0018] Figure 7 It is an enlarged schematic diagram of point D;

[0019] Figure 8 It is a schematic diagram of the tightening mechanism;

[0020] Fig. 9 This is an enlarged schematic diagram of point E.

[0021] In the figure: 1, support frame, 2, lifter, 3, universal ball, 4, fixed frame, 5, limit mechanism, 6, welding mechanism, 7, lifting hand wheel, 8, tightening mechanism, 9, long strip, 51, limit screw, 52, nut seat, 53, limit frame, 61, motor, 62, moving seat, 63, lifting cylinder, 64, lifting seat, 65, adjustment frame, 66, welding gun, 67, guide rod, 68, transmission belt, 81, tightening plate, 82, air bag, 83, rotating shaft, 84, rotating seat, 85, spring stud, 86, top block. DETAILED DESCRIPTION

[0022] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0023] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0024] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0025] See also Figure 1-Figure 9 The utility model provides a technical solution: it includes a support frame 1 and a lifter 2, a fixed frame 4 is provided above the support frame 1, a limiting mechanism 5, a welding mechanism 6 and a tightening mechanism 8 are provided on the fixed frame 4, the limiting mechanism 5 includes a limiting screw 51 and a nut seat 52, the welding mechanism 6 includes a motor 61, a moving seat 62, a lifting cylinder 63 and an adjusting frame 65, and the tightening mechanism 8 includes a tightening plate 81 and an airbag 82.

[0026] The main body of the motor 61 is arranged on the side of the fixed frame 4, and a transmission wheel is provided at the output end of the motor 61. A transmission wheel is also provided in front of the fixed frame 4. The two transmission wheels are covered with a transmission belt 68 on the outside. The transmission belt 68 is connected to the moving seat 62. The lifting cylinder 63 is located above the moving seat 62. A lifting seat 64 is provided between the adjustment frame 65 and the lifting cylinder 63.

[0027] A welding gun 66 is provided at the head of the adjusting frame 65, a long hole is provided on the fixed frame 4 below the welding gun 66, a guide rod 67 is passed through the bottom of the movable seat 62, both ends of the guide rod 67 are fixed on the fixed frame 4, and the lifting seat 64 and the movable seat 62 are interconnected through a slider rail.

[0028] The lift 2 is a scissor lift, a lifting hand wheel 7 is provided in the middle of the lift 2, universal balls 3 are evenly distributed on the upper surface of the lift 2, a long strip 9 is provided in the middle of the upper part of the lift 2, and a tightening mechanism 8 is located directly above the long strip 9.

[0029] The limiting mechanism 5 is located at the rear of the fixing frame 4, the nut seat 52 is arranged on the fixing frame 4, the limiting screw 51 passes through the nut seat 52, a limiting frame 53 is arranged in front of the limiting screw 51, guide columns are arranged on both sides of the limiting frame 53 and pass through the front vertical plate of the fixing frame 4.

[0030] A rotating shaft 83 is disposed at the rear of the tightening plate 81 . The end of the rotating shaft 83 is disposed at the bottom of the fixing frame 4 via a rotating seat 84 . The airbag 82 is located at the upper middle portion of the tightening plate 81 .

[0031] The top tightening plate 81 and the airbag 82 are symmetrically distributed below the middle of the fixing frame 4. A through hole is provided at the rear of the top tightening plate 81, and a spring stud 85 is passed through the through hole. The upper end of the spring stud 85 is fixed below the fixing frame 4. A top block 86 is provided below the head of the top tightening plate 81, and the bottom of the top block 86 faces the long strip block 9.

[0032] When using the utility model, the parts, plates or split structural parts that need to be assembled and welded are placed above the elevator 2 (the main body is purchased externally) through the existing crane. Due to the action of the universal ball 3, the worker can easily move the ports for docking. According to the length of the weld, the rear limit support can be achieved by adjusting the limit mechanism 5. According to the thickness of the welded part, the whole can be lifted and lowered by the lifting hand wheel 7 until the upper end of the welded part is against the bottom of the tightening mechanism 8, and then the air bag 82 is inflated by the existing high-pressure gas equipment, which can drive the tightening block 81 to rotate and the long strip block 9 to clamp the workpiece to fix the required welding position, and then the angle and height of the welding gun 66 are adjusted by the adjusting frame 65. Finally, the motor 61 drives the moving seat 62 to move linearly through the transmission wheel and the transmission belt 68, and the lifting cylinder 63 realizes the welding lifting of the welding gun 66 through the lifting seat 64 and the adjusting frame 65. The overall operation is simple, the welding efficiency is high, the effect is good, and labor is saved. It is very suitable for straight seam welding of products of different thicknesses.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straight seam welding device, comprising a support frame (1) and a lifter (2), characterized in that: A fixing frame (4) is arranged above the support frame (1); a limiting mechanism (5), a welding mechanism (6) and a tightening mechanism (8) are arranged on the fixing frame (4); the limiting mechanism (5) comprises a limiting screw (51) and a nut seat (52); the welding mechanism (6) comprises a motor (61), a moving seat (62), a lifting cylinder (63) and an adjusting frame (65); and the tightening mechanism (8) comprises a tightening plate (81) and an air bag (82).

2. A straight seam welding device according to claim 1, characterized in that: The main body of the motor (61) is arranged on the side of the fixed frame (4), a transmission wheel is arranged at the output end of the motor (61), and a transmission wheel is also arranged in front of the fixed frame (4). The two transmission wheels are covered with a transmission belt (68) on the outside, and the transmission belt (68) is connected to the moving seat (62). The lifting cylinder (63) is located above the moving seat (62), and a lifting seat (64) is arranged between the adjustment frame (65) and the lifting cylinder (63).

3. A straight seam welding device according to claim 2, characterized in that: A welding gun (66) is provided at the head of the adjusting frame (65), a long hole is provided on the fixed frame (4) below the welding gun (66), a guide rod (67) is passed through the bottom of the movable seat (62), both ends of the guide rod (67) are fixed on the fixed frame (4), and the lifting seat (64) and the movable seat (62) are interconnected through a slider rail.

4. The straight seam welding device according to claim 1, characterized in that: The lift (2) is a scissor lift. A lifting hand wheel (7) is provided in the middle of the lift (2). Universal balls (3) are evenly distributed on the upper surface of the lift (2). A long strip (9) is provided in the middle of the upper part of the lift (2). A tightening mechanism (8) is located directly above the long strip (9).

5. The straight seam welding device according to claim 1, characterized in that: The limiting mechanism (5) is located at the rear of the fixing frame (4), the nut seat (52) is arranged on the fixing frame (4), the limiting screw (51) passes through the nut seat (52), a limiting frame (53) is arranged in front of the limiting screw (51), and guide columns are arranged on both sides of the limiting frame (53) and pass through the front vertical plate of the fixing frame (4).

6. The straight seam welding device according to claim 1, characterized in that: A rotating shaft (83) is arranged at the rear of the tightening plate (81), and the end of the rotating shaft (83) is arranged at the bottom of the fixing frame (4) through a rotating seat (84). The air bag (82) is located in the upper middle part of the tightening plate (81).

7. A straight seam welding device according to claim 6, characterized in that: The tightening plate (81) and the airbag (82) are symmetrically distributed below the middle of the fixing frame (4); a through hole is provided at the rear of the tightening plate (81), and a spring stud (85) is passed through the through hole; the upper end of the spring stud (85) is fixed below the fixing frame (4); a top block (86) is provided below the head of the tightening plate (81), and the bottom of the top block (86) faces the long strip block (9).

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